Abstract
The aim of this study was to adapt the electrochemical behavior in synthetic body fluid (SBF) of hydroxyapatite-based coatings obtained by pulsed galvanostatic electrochemical deposition through addition of Mg in different concentrations. The coatings were obtained by electrochemical deposition in a typical three electrodes electrochemical cell in galvanic pulsed mode. The electrolyte was obtained by subsequently dissolving Ca(NO3)2·4H2O, NH4H2PO4, and Mg(NO3)2·6H2O in ultra-pure water and the pH value was set to 5. The morphology consists of elongated and thin ribbon-like crystals for hydroxyapatite (HAp), which after the addition of Mg became a little wider. The elemental and phase composition evidenced that HAp was successfully doped with Mg through pulsed galvanostatic electrochemical deposition. The characteristics and properties of hydroxyapatite obtained electrochemically can be controlled by adding Mg in different concentrations, thus being able to obtain materials with different properties and characteristics. In addition, the addition of Mg can lead to the control of hydroxyapatite bioactive ceramics in terms of dissolution rate.
Highlights
Intense and regular use of medical devices has resulted in hostile factors, including wearing out, micro-motions, and increase in corrosion
As it can be seen, the entire investigated surface has been fully covered regardless of the electrolyte composition with a uniform layer, which due to its morphology has a high surface to volume ratio
Mg in different concentrations was incorporated in HAp structure by electrochemical deposition method using galvanic pulses technique on Ti6Al4V substrate
Summary
Intense and regular use of medical devices has resulted in hostile factors, including wearing out, micro-motions, and increase in corrosion. To achieve a successful fixation, it is important to create a stable implant-bone interface [1] To overcome these problems, the main inorganic component in natural bone-hydroxyapatite (HAp, Ca10 (PO4 ) (OH)2 )-is widely used as a bioactive coating material [8,9,10]. It is possible to tailor the properties of HAp-based materials by addition of a wide variety of substitutions and ion doping found in natural bones (e.g., Mg, Zn, Sr) into its crystal structure [11,12,13,14,15,16,17,18,19,20] in search for the promotion of bone remodeling, antibacterial activity, and enhanced bio-integration. It is reasonable to deduce that by incorporation of different ions into HAp coating simultaneously could be beneficial for the improvement of both bioactivity and long-term stability such as biodegradation [21] and electrochemical behavior of the coating in physiological media [22,23]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
